1. Помогите исправить ошибки в предложениях. I am 17 and study

1. Помогите исправить оплошности в предложениях.
I am 17 and study at the 10th form.
The person which I admire is my father.
They likes travelling and goes in other countries every summer.
I am proud for my sister. She's a person which is quite witty and never lets people down.
I bought a new sweater who fitted me so much.
2. Поставить глагол в правильной форме и составить отрицательные и вопросительные предложения.
In the evenings he usually (go) to pubs.